Question

A car traveling 69 km/h is 247 m behind a truck traveling 93 km/h. How long will it take the car to reach the track? Calculate to one decimal

Answer #1

1. A car traveling 69 km/h is 247 m behind a truck traveling 93
km/h. How long will it take the car to reach the track? Calculate
to one decimal
2.Suppose one of Napoleon cannons has a muzzle speed of 32m/s.
It was aimed at 54 ◦ angle. What height can the cannon
ball reach? Use g = 9.8 m/s2
Calculate to one decimal
3.A girl throws a rock horizontally, with a velocity of 13 m/s,
from a bridge. It...

1. A girl throws a rock horizontally, with a velocity of 13 m/s,
from a bridge. It falls 17 m to the water below. How far does the
rock travel horizontally before striking the water, assuming
negligible air resistance? Use g = 9.8 m/s2
2. Suppose one of Napoleon cannons has a muzzle speed
of 32m/s. It was aimed at 54 ◦ angle. What height can
the cannon ball reach? Use g = 9.8 m/s2
3.A car traveling 69 km/h...

A car is traveling at 80 km/h on a highway and a truck is
traveling at 40km/h. can these vehicles have the same kinetic
energy? if so, what must be the ratio of their masses? pleadse show
how you get the answer. Thanks

A car is traveling at a steady 70 km/hkm/h in a 50 km/hkm/h
zone. A police motorcycle takes off at the instant the car passes
it, accelerating at a steady 8.5 m/s^2 to reach the 70 km/h. How
far is the motorcycle from the car when it reaches this speed?
(Time to catch up to the car= 2.3 seconds)

What force is required to slow a 1250-kg car traveling 115 km/h to
30.0 km/h within 3.50 s? (a) How far does the car travel during its
deceleration? (b) How long does it take for the car to come to a
complete stop at this same rate of deceleration?

A car is traveling at a steady 71 km/h in a 50 km/h zone. A
police motorcycle takes off at the instant the car passes it,
accelerating at a steady 8.3 m/s2. How much time elapses before the
motorcycle is moving as fast as the car? How far is the motorcycle
from the car when it reaches this speed?

A car traveling at a constant speed of 21.0 m/s passes a trooper
hidden behind a billboard. One second after the speeding car passes
the billboard, the trooper sets off in chase with a constant
acceleration of 2.60 m/s2.
How long does it take the trooper to overtake the speeding car?
Solve this problem by a graphical method. ________ seconds

A car traveling 57.8 km/h is 21.7 m from a barrier when the
driver slams on the brakes. The car hits the barrier 2.22 s later.
(a) What is the car's constant deceleration magnitude before
impact? (b) How fast is the car traveling at impact?

A car traveling 54.8 km/h is 23.3 m from a barrier when the
driver slams on the brakes. The car hits the barrier 1.84 s later.
(a) What is the car's constant deceleration
magnitude before impact? (b) How fast is the car
traveling at impact?

A car is traveling at a steady 71 km/r in a 50 km/h zone. A
police motorcycle takes off at the instant the car passes it,
accelerating at a steady 7.2 m/s2.
Part A
How much time elapses before the motorcycle is moving as fast as
the car?
Part B
How far is the motorcycle from the car when it reaches this
speed?

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